My second visit to Yellowstone National Park in September 2014.
Yellowstone National Park, established in 1872 and located primarily in Wyoming, was America's first national park. To this day, Yellowstone remains one of the country's most popular national parks with almost four million annual visitors. Yellowstone spans almost 3,500 miles, and extends into parts of Montana and Idaho, making it the largest National Park in the US.
Yellowstone National Park sits on top of a dormant volcano and…